问题描述
我希望能够根据其大小查询和过滤表
我已经知道sp_spaceused，但是它一次显示一张表的大小
解决方法
documented DMV queries允许您获取所有表大小的报告。
,根据Synapse建议，此处that view已调整为使用sys.pdw_permanent_table_mappings
SELECT two_part_name,SUM( row_count ) AS row_count,SUM( reserved_space_GB ) AS reserved_space_GB
FROM dbo.vTableSizes
GROUP BY two_part_name
ORDER BY reserved_space_GB DESC;
视图：
ALTER VIEW dbo.vTableSizes
AS
WITH base
AS
(
SELECT
GETDATE() AS [execution_time],DB_NAME() AS [database_name],s.name AS [schema_name],t.name AS [table_name],QUOTENAME(s.name)+'.'+QUOTENAME(t.name) AS [two_part_name],nt.[name] AS [node_table_name],ROW_NUMBER() OVER(PARTITION BY nt.[name] ORDER BY (SELECT NULL)) AS [node_table_name_seq],tp.[distribution_policy_desc] AS [distribution_policy_name],c.[name] AS [distribution_column],nt.[distribution_id] AS [distribution_id],i.[type] AS [index_type],i.[type_desc] AS [index_type_desc],nt.[pdw_node_id] AS [pdw_node_id],pn.[type] AS [pdw_node_type],pn.[name] AS [pdw_node_name],di.name AS [dist_name],di.position AS [dist_position],nps.[partition_number] AS [partition_nmbr],nps.[reserved_page_count] AS [reserved_space_page_count],nps.[reserved_page_count] - nps.[used_page_count] AS [unused_space_page_count],nps.[in_row_data_page_count]
+ nps.[row_overflow_used_page_count]
+ nps.[lob_used_page_count] AS [data_space_page_count],nps.[reserved_page_count]
- (nps.[reserved_page_count] - nps.[used_page_count])
- ([in_row_data_page_count]
+ [row_overflow_used_page_count]+[lob_used_page_count]) AS [index_space_page_count],nps.[row_count] AS [row_count]
from
sys.schemas s
INNER JOIN sys.tables t
ON s.[schema_id] = t.[schema_id]
INNER JOIN sys.indexes i
ON t.[object_id] = i.[object_id]
AND i.[index_id] <= 1
INNER JOIN sys.pdw_table_distribution_properties tp
ON t.[object_id] = tp.[object_id]
INNER JOIN sys.pdw_permanent_table_mappings tm
ON t.[object_id] = tm.[object_id]
INNER JOIN sys.pdw_nodes_tables nt
ON tm.[physical_name] = nt.[name]
INNER JOIN sys.dm_pdw_nodes pn
ON nt.[pdw_node_id] = pn.[pdw_node_id]
INNER JOIN sys.pdw_distributions di
ON nt.[distribution_id] = di.[distribution_id]
INNER JOIN sys.dm_pdw_nodes_db_partition_stats nps
ON nt.[object_id] = nps.[object_id]
AND nt.[pdw_node_id] = nps.[pdw_node_id]
AND nt.[distribution_id] = nps.[distribution_id]
LEFT OUTER JOIN (select * from sys.pdw_column_distribution_properties where distribution_ordinal = 1) cdp
ON t.[object_id] = cdp.[object_id]
LEFT OUTER JOIN sys.columns c
ON cdp.[object_id] = c.[object_id]
AND cdp.[column_id] = c.[column_id]
WHERE pn.[type] = 'COMPUTE'
),size
AS
(
SELECT
[execution_time],[database_name],[schema_name],[table_name],[two_part_name],[node_table_name],[node_table_name_seq],[distribution_policy_name],[distribution_column],[distribution_id],[index_type],[index_type_desc],[pdw_node_id],[pdw_node_type],[pdw_node_name],[dist_name],[dist_position],[partition_nmbr],[reserved_space_page_count],[unused_space_page_count],[data_space_page_count],[index_space_page_count],[row_count],([reserved_space_page_count] * 8.0) AS [reserved_space_KB],([reserved_space_page_count] * 8.0)/1000 AS [reserved_space_MB],([reserved_space_page_count] * 8.0)/1000000 AS [reserved_space_GB],([reserved_space_page_count] * 8.0)/1000000000 AS [reserved_space_TB],([unused_space_page_count] * 8.0) AS [unused_space_KB],([unused_space_page_count] * 8.0)/1000 AS [unused_space_MB],([unused_space_page_count] * 8.0)/1000000 AS [unused_space_GB],([unused_space_page_count] * 8.0)/1000000000 AS [unused_space_TB],([data_space_page_count] * 8.0) AS [data_space_KB],([data_space_page_count] * 8.0)/1000 AS [data_space_MB],([data_space_page_count] * 8.0)/1000000 AS [data_space_GB],([data_space_page_count] * 8.0)/1000000000 AS [data_space_TB],([index_space_page_count] * 8.0) AS [index_space_KB],([index_space_page_count] * 8.0)/1000 AS [index_space_MB],([index_space_page_count] * 8.0)/1000000 AS [index_space_GB],([index_space_page_count] * 8.0)/1000000000 AS [index_space_TB]
FROM base
)
SELECT *
FROM size
;